My boyfriend constantly wants sex. I don’t !!

Ok soooo no judgement please!

I’m 14 and so is my boyfriend. My boyfriend and I have been in a relationship for almost 2 years and in April we went camping and his sister and her girlfriend jokingly bought us a few condoms. We laughed it off but it was freezing that night in that tent and we kept waking up. Long story short- we had sex WITH the condom. Anyway we did it again about 2 months later and I didn’t like that time it hurt so I told him I wanted a break. He agreed, sort of. He would still try to initiate it by trying to eat me out, or touching, fingering. But I didn’t want it and still don’t. Anyway last month I was in my fertile week and he wanted to have sex and I said no, even with a condom I really don’t want to risk it. I felt guilty and we ended up doing it, which when we are doing it I feel great but afterwards I beat myself up over it. I’ve told him numerous times I want a break and he still doesn’t stop with all the touching. Last Friday we did it, and I was in my fertile week again. We used a condom and checked it after, it wasn’t broken. But I told him I wanted a break for real now. I’m not ready to parent, I don’t need to have sex. I honestly regret losing my virginity that time in April because he just thinks we can always have sex and I don’t even really want to most of the time. Don’t think wrongly about him, he is super sweet and my whole family adores him. He treats me great. I think its because he is young and exposed to sex he is like this. What should I tell him?